3-(S)-Phenylcarbamoyl-piperidine-1-carboxylic acid benzyl ester → N-Phenylpiperidine-3-carboxamide

Participants

Reaction Steps

A solution of 3-(S)-Phenylcarbamoyl-piperidine-1-carboxylic acid benzyl ester (1.80 mol, 608 mg) and Pd—C 30% (100 mg) in CH3OH (10 mL) at 25° C. were added to a Paar hydrogenator low pressure reaction vessel. The mixture was reacted at 55 psi with vigorous shaking until hydrogen uptake subsided (2 h). The catalyst was filtered through a pad of celite. The filtrate was concentrated in vacuo which provided piperidine-3-carboxylic acid phenylamide (367 mg, 367 mg theoretical, 99%) as a white foam: LRMS m/z 205 (M++1, C12H16N2O requires 205).

Provenance & Evidence